Refuse collection vehicle



June 23, 197@ J. w. KNIGHT 3,5l6,562

REFUSE COLLECTION VEHICLE Filed Aug. 8, 1968 ZZ y I 7g Kw2 5V M, W- if@,QTTOP/VERS United .States Patent O 3,516,562 REFUSE COLLECTION VEHICLEJohn W. Knight, New Hampton, Iowa, assignor to Sani- Systems, Inc., NewHampton, Iowa, a corporation of Iowa Filed Aug. 8, 1968, Ser. No.751,095 Int. Cl. B651? `/OZ U.S. Cl. 214-302 2 Claims ABSTRACT F THEDISCLGSURE A principal object of this invention is to provide a refusecollection vehicle including a refuse receptacle lifting arm meansmovably mounted thereon.

A further object of this invention is to provide a refuse collectionVehicle including a lifting arm means movably mounted thereon adapted todetachably receive a refuse receptacle.

A further object of this invention is to provide a refuse collectionvehicle including a lifting arm means adapted to move a refusereceptacle from a position laterally of the vehicle to a position overthe box portion of the vehicle.

A further object of this invention is to provide a refuse collectionvehicle including a receptacle lifting arm means which is longitudinallymovably mounted at one side of the vehicle.

A further object of this invention is to provide a refuse arm meanswhich is longitudinally movably mounted at one side of the vehicle.

A further object of this invention is to provide a refuse collectionvehicle having a lifting arm 'means mounted thereon which is adapted tobe detachably pivotally secured to a refuse receptacle.

A further object of this invention is to provide a refuse collectionvehicle including a lifting arm means adapted to raise a refusereceptacle in a vertical position.

A further object of this invention is to provide a refuse collectionvehicle which is adapted for use in confined areas.

A further object of this invention is to provide a refuse collectionvehicle which is economical of manufacture, durable in use and refinedin appearance.

These and other objects will be apparent to those skilled in the art.

This invention consists in the construction, arrangements, andcombination of the various parts of the device, whereby the objectscontemplated are attained as hereinafter more fully set forth,specifically pointed out in the claims, and illustrated in theaccompanying drawings in which:

FIG. 1 is a side elevational view of the refuse collection vehicle;

FIG. 2 is a sectional view as seen along lines 2 2 of FIG. 1, the brokenlines indicating the dumping position of the lifting arm means andrefuse receptacle;

FIG. 3 is an enlarged sectional view as seen along lines 3-3 of FIG. 2;

FIG. 4 is a fragmentary end View of the lifting arm means;

3,516,562. Patented June 23, 1970 ICC FIG. 5 is a fragmentary sectionalview of a portion of the lifting arm means; and

FIG. 6 is a sectional view as seen along lines 6-6 of FIG. 6.

The refuse collection vehicle of this invention is generally designatedby the reference numeral 10` and includes a wheeled frame means 12having a cab 14 and a box 16 provided thereon. The vehicle '10i ispowered by suitable engine and transmission means which do not form apart of this invention. Box 16 has a rearward end 18, forward end 20,opposite sides 22 and 24 and an open upper end 26.

A pair of guide rods 28 and 30 are secured to side 24 by any convenientmeans and are vertically spaced as best illustrated in FIG. 4. Rods 28and 30 extend horizontally along the side 24 of the vehicle 10` andhave` a vertically disposed support 32 horizontally slidably mountedthereon. A hydraulic cylinder means 34 is connected at its base end to abracket 36 and is connected at its other end to the support 32 lby a pin38. Hydraulic cylinder 34 is adapted to move the support 32 forwardly onthe rods 28 and 30 when the rod of the cylinder is extended and isadapted to move the support 32 rearwardly with respect to the vehicle10' when the cylinder rod thereof is retracted. The hydraulic cylindermeans 34 is of the double acting type and is connected to a suitablesource of hydraulic fluid under pressure and a suitable control meansfor operating the same.

A lifting arm 38 is pivotally connected at its upper end to the upperend of support 32 by a pin 40` and is generally L-shaped as viewed inFIG. 4. A hydraulic cylinder means 42 is pivotally connected to thelifting arm 38 at 44 and is pivotally connected to the lower end of thesupport 32 at 46. Hydraulic cylinder means 42 is of the double actingtype and is fluidly connected to a source of hydraulic fluid underpressure and a suitable control means for operating the same. Theextension of the rod 48 of the hydraulic cylinder 42` causes the liftingarmy 38 to be moved from the position seen in solid lines in FIG. 2 tothe position indicated by broken lines in FIG. 2. The retraction of therod 48 obviously causes the lifting arm 38 to be moved from the positionillustrated by broken lines in FIG. 2 to the position illustrated bysolid lines in FIGS. 2 and 4.

A collar 48 is welded to the outer end of lifting arm 38 and has a shaft50 rotatably mounted therein and which extends laterally thereof asillustrated in FIG. 5. Collar 52 is secured to the rod 50 by 4means of abolt means 54 extending therethrough so that the collar 52 is free torotate with respect to the collar 48. Collar 52 has a pair of oppositelydisposed ears 56 and *58 secured thereto having hydraulic cylinders 60and 62 pivotally connected at one end thereto respectively. A pair ofmovable jaws 64 and 66 are pivotally connected to the outer end ofcollar 452 by a pin 68. The cylinder rod 70 of hydraulic cylinder "60 ispivotally connected to jaw 64 at 72 while the rod 74 of hydrauliccylinder 62V is pivotally connected to jaw 66 at 76. The hydrauliccylinders 60 and `62 are also uidly connected to a suitable source ofhydraulic uid under pressure and a suitable control means for operatingthe same. The extension of the rods 70 and 74 from their respectivecylinders causes the jaws `64 and 66 to be moved towards each other fromthe position illustrated by broken lines in FIG. 3 to` the positionillustrated by solid lines in FIG. 3. Conversely, the retraction of therods 70 and 74 into their respective cylinders causes the jaws 64 and 66to be moved away from each other. Jaws 64 and 66 are adapted todetachably receive a refuse receptacle 78 therebetween as illustrated inFIGS. l and 2. Receptacle 78 is maintained between the jaws 64 and 66 byoperating the cylinders 60 and 62 to close the jaws 64 and 66 around thereceptacle 78 adjacent the upper end thereof. Receptacle 78 includes acover 80 which is pivotally secured thereto.

In operation, the vehicle is driven to the desired collection sitewherein one or more of the receptacles 78 would be located. The liftingarm means 38 would normally be positioned in the position illustrated inFIG. 4 and the cylinders 60 and 62 would be operated to move the jaws 64and 66 away from each other to permit the receptacle 78 to be positionedtherebetween. When the receptacle 78 is positioned between the jaws 64and 66, the cylinders 60 and 62 are operated to close the jaws 64 and 66around the receptacle 78 to firmly maintain the same therebetween. Thehydraulic cylinder 42 is then operated to cause the lifting arm 38 to beraised from the position illustrated by solid lines in FIG. 2 to theposition illustrated by broken lines in FIG. 2. The pivotal connectionbetween the collar 52 and the lifting arm 38 causes the receptacle 78 tobe maintained in a substantially vertical position during a largeportion of the dumping cycle so that the bottom of the receptacle willnot swing out and hit a building or the like when the vehicle is beingused in confined areas such as an alley or the like. When the horizontalportion 84 of lifting arm 38 reaches approximately a 45 degree anglewith respect to the ground, the trip bumper 86 which extends laterallyfrom the lifting arm 38 engages the side of the receptacle 78 to limitthe pivotal movement of the receptacle 78 with respect to the liftingarm 38 so that the receptacle` 78 will be moved to a dumping positionupon the continued pivotal movement of the lifting arm 38 as illustratedin FIG. 2.

An extremely important feature of this invention is the ability of thevehicle to longitudinally move the lifting arm means and its associatedstructure longitudinally along the side of the box by means of thehydraulic cylinder means 34. The ability of the lifting arm 38 to bemoved longitudinally of the vehicle permits the receptacle 78 to bedumped in different portions of the box 16 as the box becomes filledwith refuse.

Thus it can be seen that a unique refuse collection vehicle has beenprovided which effectively and conveniently permits the dumping ofrefuse thereinto. The vehicle of this invention may be used in confinedareas and permits the refuse to be dumped into the box in variouspositions as the box becomes filled. The vehicle of this invention alsoprovides a convenient means for raising and lowering a refuse receptaclewith respect thereto to permit the dumping of the refuse therefrom in aconvenient and economical fashion. Therefore, it can be seen that thedevice accomplishes at least all of its stated objectives.

Some changes may be made in the construction and arrangement of myrefuse collection vehicle without departing from the real spirit andpurpose of my invention, and it is my intention to cover by my claims,any modified forms of structure or use of mechanical equivalents whichmay be reasonably included within their scope.

I claim:

1. A refuse collection vehicle, comprising,

a powered wheeled frame means having rearward and forward ends andopposite sides,

a refuse box on said frame means having an open upper end,

a lifting arm means movably mounted at one side of said box adapted tohave a refuse receptacle secured thereto,

a rst power means connected to said lifting arm means adapted to movesaid lifting arm means from a first position to a second position, saidrefuse receptacle being positioned laterally of said one side of saidbox when said lifting arm means is in its first position 4 and beingpositioned over the open upper end of said box in a dumping positionwhen said lifting arm means is in its second position,

said lifting arm means including a support at said one side of said box,an arm member pivotally secured at one end to said support and extendingdownwardly therefrom and thence outwardly therefrom,

said first power means being connected to said arm member,

said refuse receptacle being operatively pivotally connected about ahorizontal axis to the outwardly extending portion of said arm member,said horizontal axis being transverse to the longitudinal axis of theoutwardly extending portion of said arm member,

said arm member having a trip bumper means extending transverselytherefrom which is in the pivotal path of said refuse receptacle andadapts to engage said refuse receptacle to cause said refuse receptacleto be substantially inverted when said lifting arm means is in itssecond position.

2. A refuse collection vehicle, comprising,

a powered wheeled frame means having rearward and forward ends andopposite sides,

a refuse box on said frame means having an open upper end,

a lifting arm means movably mounted at one side of said box adapted tohave a refuse receptacle secured thereto,

a first power means connected to said lifting arm means adapted to movesaid lifting arm means from a first position to a second position, saidrefuse receptacle being positioned laterally of said one side of saidbox when said lifting arm means is in its first position and beingpositioned over the open upper end of said box in a dumping positionwhen said lifting arm means is in its second position,

said lifting arm means including a lsupport at said one side of saidbox, an arm member pivotally secured at one end to said support andextending downwardly therefrom and thence outwardly therefrom,

said rst power means being connected to said arm member,

said refuse receptacle being operatively pivotally connected about ahorizontal axis to the outwardly extending portion of said arm member,said horizontal axis being transverse to the longitudinal axis of theoutwardly extending portion of said arm member,

a pair of movable jaw members pivotally mounted about a horizontal axisat the outer end of said outwardly extending portion of said lifting armmeans, said horizontal axis being parallel to the longitudinal axis ofsaid frame means,

said movable jaw members being hydraulically powered and adapted tograsp and extend around the refuse receptacle from one side thereofbelow the upper end thereof so that the area above the upper end of therefuse receptacle is open to permit refuse to be inserted thereinto whensaid lifting arm means is in its first position and to permit refuse tobe dumped therefrom when said lifting arm means is in its secondposition.

References Cited UNITED STATES PATENTS 1,926,307 9/1933 Pierce 214-803,446,377 5/ 1969 Heinert 214-302 3,447,705 6/ 1969 Stone 214-302 HUGOO. SCHULZ, Primary Examiner U.S. Cl. X.R. 214-

